Active Heave Compensation (AHC)

Current offshore and subsea projects require more advanced technology for handling loads to the seabed. This is achieved using an active or passive heave compensation system on the lifting device to counter vessel movement.

SMI Offshore supplies tailor-made active heave compensation systems on winches or hydraulic cylinders that rely on the input of motion sensors. Responding to the signal from these sensors, the winches or cylinders pay in or pay out wire rope to keep the load at a constant elevation.